10-05-2014, 06:48 PM
I would consider using 8.2 uF 630 V metallized polypropylene caps for the two filters right after the rectifier. These can handle much greater ripple current than modern electrolytics, and they will basically last forever.
I have been using this type of cap for the first filter in several radios and they work great. They are about $6.50 each from AES and small enough to stuff inside the original electrolytic cans.
I have been using this type of cap for the first filter in several radios and they work great. They are about $6.50 each from AES and small enough to stuff inside the original electrolytic cans.